geocentric zenith

geocentric zenith

See zenith.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

geocentric zenith

[¦jē·ō¦sen·trik ′zē·nith]
(astronomy)
The point where a line from the center of the earth through a point on its surface meets the celestial sphere.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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